Find the following integrals:

$($a$){\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}(x^3+2x-3)dx$

$($b$){\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}(x-1{)}^{2}dx$

$($c$){\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}(x-1)(x+2)dx$

$($d$){\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}(x+2{)}^{3}dx$

$($e$){\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}(e^{3x}-e^{2x}+e^x)dx$

$($f$){\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}\frac{x^3-3x+4}{x}dx$